/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.yarn.sls.nodemanager;
import org.apache.hadoop.yarn.api.records.Container;
import org.apache.hadoop.yarn.api.records.ContainerId;
import org.apache.hadoop.yarn.conf.YarnConfiguration;
import org.apache.hadoop.yarn.server.resourcemanager.ResourceManager;
import org.apache.hadoop.yarn.server.utils.BuilderUtils;
import org.apache.hadoop.yarn.sls.conf.SLSConfiguration;
import org.apache.hadoop.yarn.util.resource.Resources;
import org.junit.After;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
public class TestNMSimulator {
private final int GB = 1024;
private ResourceManager rm;
private YarnConfiguration conf;
@Before
public void setup() {
conf = new YarnConfiguration();
conf.set(YarnConfiguration.RM_SCHEDULER,
"org.apache.hadoop.yarn.sls.scheduler.ResourceSchedulerWrapper");
conf.set(SLSConfiguration.RM_SCHEDULER,
"org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler");
conf.setBoolean(SLSConfiguration.METRICS_SWITCH, false);
rm = new ResourceManager();
rm.init(conf);
rm.start();
}
@Test
public void testNMSimulator() throws Exception {
// Register one node
NMSimulator node1 = new NMSimulator();
node1.init("rack1/node1", GB * 10, 10, 0, 1000, rm);
node1.middleStep();
Assert.assertEquals(1, rm.getResourceScheduler().getNumClusterNodes());
Assert.assertEquals(GB * 10,
rm.getResourceScheduler().getRootQueueMetrics().getAvailableMB());
Assert.assertEquals(10,
rm.getResourceScheduler().getRootQueueMetrics()
.getAvailableVirtualCores());
// Allocate one container on node1
ContainerId cId1 = newContainerId(1, 1, 1);
Container container1 = Container.newInstance(cId1, null, null,
Resources.createResource(GB, 1), null, null);
node1.addNewContainer(container1, 100000l);
Assert.assertTrue("Node1 should have one running container.",
node1.getRunningContainers().containsKey(cId1));
// Allocate one AM container on node1
ContainerId cId2 = newContainerId(2, 1, 1);
Container container2 = Container.newInstance(cId2, null, null,
Resources.createResource(GB, 1), null, null);
node1.addNewContainer(container2, -1l);
Assert.assertTrue("Node1 should have one running AM container",
node1.getAMContainers().contains(cId2));
// Remove containers
node1.cleanupContainer(cId1);
Assert.assertTrue("Container1 should be removed from Node1.",
node1.getCompletedContainers().contains(cId1));
node1.cleanupContainer(cId2);
Assert.assertFalse("Container2 should be removed from Node1.",
node1.getAMContainers().contains(cId2));
}
private ContainerId newContainerId(int appId, int appAttemptId, int cId) {
return BuilderUtils.newContainerId(
BuilderUtils.newApplicationAttemptId(
BuilderUtils.newApplicationId(System.currentTimeMillis(), appId),
appAttemptId), cId);
}
@After
public void tearDown() throws Exception {
rm.stop();
}
}